Finding the Fourth Proportional to 528,561.47, 729,415.31 and 286,844.08
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Solution
The fourth proportional to 528,561.47, 729,415.31 and 286,844.08 is: 395,845.09
Step by Step Solution
- Step 1: Write the proportion equation
528,561.47 : 729,415.31 = 286,844.08 : x - Step 2: Convert to fraction form
528,561.47/729,415.31 = 286,844.08/x - Step 3: Cross multiply
528,561.47x = 729,415.31 × 286,844.08 - Step 4: Simplify right side
528,561.47x = 209,228,463,534.87 - Step 5: Solve for x
x = 209,228,463,534.87/528,561.47 - Step 6: Final answer
x = 395,845.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.